Nerves appeared to be fraying among Republicans faced with the increasingly unappetizing prospect of opposing new curbs on Wall Street.

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Republican aides said the party faced a dilemma: It could sign on to a bill that they and many of their constituents won’t like, or watch a bill pass with them largely on the sidelines and give Democrats an issue to run on in the fall.

–Blanche Lincoln’s derivatives plan is meeting some resistance in the Democratic caucus, but she’s not letting it go quietly.